Appliance for eye diagnosis



March 1, 1932. B. KRONENBERGER 1,847,614

APPLIANCE FOR EYE DIAGNOSIS Filed June 6, 1929 Patented Mar. 1, 1932UNITED sm'rss IBEBNKARD mnnnnnnonn, or

' arrmmcn roa- Application fled June 8, 1929, Serial In.

fying glass, a magnifying mirror which may be alternately inserted inthe holder, and a set of scale-bearing members which are adapted to bedis laced on the holder so as to cooperate wit the magnifying glass andthe magnifying mirror as required.

It is an established fact that by eye diagnosis diseases, phenomena ofdegeneration etc. can be detected in the eyes at a comparaao tivelyearly stage and so that any person without medical knowledge is able toascertain the initial stages of a disease, and to apply remedies at anearly stage.

Obviously an appliance must be of difierent construction for diagnosisby another person, and for diagnosis by the person himself. vIn thefirst instance, the appliance is equipped with a magnifying glass and inthe second instance it is equipped with a air of so concave mirrors.Special scales must provided for cooperation with the magnifying glassand with the mirror, one scale corresponding to the right. and the otherto the left e e. I

According to my invention the same appliance may be used in both. casesso that the cost of an extra appliance is saved and the operationbecomes convenient, ready and rapid.

In a preferred embodiment of my invention I'attach to the aforesaidholder annular scale-bearing members which are pivotally mounted on theholder so that they may be tilted and reversed.

In the drawings aflixed to this specification and forming part thereofan appliance embodying my invention is illustrated diagrammatically byway of example.

In the drawings Fig. 1 is an elevation of the appliance o equipped withthe magnifying glass,

, Fig er of the appliance, 3 2.1-). t. mh m "Fig.3 {is-an endelevation'lof: the appliance showing-one of itsscalerbearin'gmemberstilt-;

- in the socket h.

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- A- L I matings-a 513- .llis anaxial sect ed for reversing, a 3-7.: a.F144 is an axial sectionofiaimirror adapt- 7 ed to, be exchangedfor:the=magnifying glass Referring now tothe drawings-miss hanzdle, b; is.a older secured to the handle, "0, 0 5,1: are.=;bea rin on either'sideiof i'the holder oposite the h a'ndle: a, dare spherical knuckles1n the bearings, e and i ft. are --annul-a1"scailebearing-memberssecured sto the.knuckles*, l

is a spring clip oncac'h scale-bearirig-memberoz;

foriholdingit inposition onuthe holder b, h 55 is a socket adapted tobeins'ertedfin the holder 6 at its centre, and g is a magnifying glass Asimilar socket is is illustrated in Fig. 45': with a mirror having twoconcave units 11. instead of the lens 9.

The scale-bearing members a and f are made on one side with 'scalw forthe right and for the left eye which are used in .combination with themagnifyin glass 9 and on 15 the other side with scales w ich are used incombination with -thlconcave mirror units 6.

In the position illustrated in Figs. 1 and 2 the outer faces of thescale-bearing members e and f expose the scales for the right and 3 theleft eye corresponding to the magnifying glass with which the eyes ofother persons are observed. The magnifying glass may be a single orcombined magnifying lens.

If it is desired to observe the own eyes, theas scale-bearing membersare tilted away from the holder 6 as shown in Fig. 3, the socket It withthe magnifying glass 9 is removed, the socket k with the mirrors i isinserted in its stead, and the scale-bearing members are retated throughan angle of 180 so that the scales which were concealed on the insidefor i the magnifying glass, are now exposed on the I outside forcooperation with the mirror. The clips Z hold the scale-bearing memberin the new osition. The scales which are now expose show again the rightand the left eye but with consideration of the fact that the image isreversed by the mirror as compared with the image of the magnifyingglass.

I wish it to be understood that I do not desire to be limited to theexact details of construction shown and described for obviousmodifications will occur to a person skilled in the art.

1. An appliance for eye diagnosis comprising a holder, a magnifying lensand a magnifying mirror, a seat in said holder for'the alternatereception of said lens and said mirror, and annular scale-bearingmembers pivotally mounted on, and adapted to be applied to, oppositesides of said holder.

2. An appliance for eye diagnosis comprising a holder, a magnifying lensand a magni fying mirror, :1 seat in said holder for the al- 1 ternatereception of said lens and said mirror, annular scale-bearing memberspivotally mounted on, and adapted to be applied to, opposite sides ofsaid holder, and scales on both sides of said scale-bearing members.

3. An appliance for eye diagnosis comprising a holder, a magnifying lensand a magnifying mirror, a seat in said holder for the alternatereception of said lens and said mirror, annular scale-bearing memberspivotally mounted on, and adapted to be applied to, opposite sides ofsaid holder, and means for clamping said scale-bearing members onoppositc sides of said holder.

In testimony whereof I affix my signature.

BERNHARD KRON EN BERGER.

